Southern Pacific Freight Car Specification Sheet 12A
Depressed Center/Heavy Duty Flat cars - 1965
Page 1
Page 2
Car Series
Numbers
SP & SSW
(Cotton Belt) |
No.
of Cars |
Capacity |
Load Space |
Outside Dimensions |
Type of Deck |
Nominal
Pounds |
Average
Light
Weight |
Average
Load Limit |
Deck
Length |
Deck
Width |
Length
(3) |
Width |
Deck
Height
Above Rail |
SSW 80010
to 80013 |
4 |
600,000 |
164,000 |
625,800 (1) |
35' 11" (2)
35" |
10' 0" |
58' 1" |
10' 0" |
4' 2" |
Steel |
- Maximum load may be
- concentrated at center of car, or
- uniformly distributed over any distance symmetrical about center line of car, or
- two equal concentrated loads symmetrically spaced about center of car. Single concentrated loads must not exceed 450,000 pounds at 5' 7½" or 406,250 pounds at 7' 10½" from center of car.
- 35' 11" is maximum deck length. Length with stakes in place is 35'
- Coupled length may be obtained by adding 30" to the outside lengths shown.
Car Series
Numbers
SP & SSW
(Cotton Belt) |
No.
of Cars |
Capacity |
Load Space |
Outside Dimensions |
Type of Deck |
Nominal
Pounds |
Average
Light
Weight |
Average
Load Limit |
Deck
Length |
Deck
Width |
Length
(1) |
Width |
Deck
Height
Above Rail |
| SP 500550 |
1 |
250,000 |
109,400 |
267,100 |
53' 0" |
9' 8" |
54' 1" |
10' 3" |
3' 8" |
Steel |
SP 500600
to 500603 |
4 |
395,000 |
105,200 |
396,800 |
44' 0" |
9' 2" |
45' 1" |
9' 9" |
4' 2" |
Steel |
| SP 500604 |
1 |
391,000 |
109,100 |
392,900 |
44' 0" |
9' 2" |
45' 1" |
9' 9" |
4' 2" |
Steel |
- Coupled length may be obtained by adding 30" to the outside lengths shown.
Car Series
Numbers
SP & SSW
(Cotton Belt) |
No.
of Cars |
Capacity |
Load Space |
Height of
Depression
From Rail |
Outside Dimensions |
Type of Deck |
Nominal
Pounds |
Average
Light
Weight |
Average
Load Limit |
Length of
Depression |
Width of
Depression |
Deck
Length |
Deck
Width |
Length
(5) |
Width |
Deck
Height Above Rail |
SP 500000
to 500009 |
10 |
152,000 |
67,400 |
152,600 (1) |
24' 0" |
9' 9" |
52' 4" |
9' 9" |
2' 3" |
53' 0" |
9' 9" |
3' 10" |
Steel |
SP 500500
to 500501 |
2 |
250,000 |
128,000 |
266,500 (2) |
21' 0" |
9' 0" |
57' 9" |
9' 0" |
2' 0" |
58' 4" |
9' 10" |
4' 0" |
Steel |
SP 500502
to 500521 |
20 |
250,000 |
121,000 |
273,500 (3) |
26' 0" |
9' 0" |
62' 9" |
9' 0" |
2' 4" |
63' 4" |
10' 0" |
4' 0" |
Steel |
| SSW 80000 |
1 |
250,000 |
124,700 |
269,800 (3) |
21' 0& |
9' 0" |
57' 9" |
9' 0" |
2' 0" |
58' 4" |
9' 10" |
4' 2" |
Steel (4) |
SSW 80005
to 80006 |
2 |
250,000 |
120,500 |
274,000 (3) |
26' 0& |
9' 0" |
62' 9" |
9' 0" |
2' 4" |
63' 4" |
10' 0" |
4' 2" |
Steel (4) |
- Maximum load limit 60,000 pounds uniformly distributed over 3' at center of car; 68,000 pounds uniformly distributed over 10' at center of car; 76,000 pounds uniformly distributed over 18' at center of car; 84,000 pounds uniformly distributed over 24' at center of car or length of depressed deck.
- Maximum load limit of 248,200 pounds over a distance of 18' at center of car or a concentrated load of 230,000 pounds at center of car.
- Maximum load limit of 255,000 pounds over a distance of 18' at center of car or a concentrated load of 205,100 pounds at center of car.
- Deck is steel in depression area only, balance of deck is wood.
- Coupled length may be obtained by adding 30" to the outside lengths shown.
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